Cổng Tài nguyên Giáo dục Mở - NTTU (Nguyen Tat Thanh University)
Not a member yet
1185 research outputs found
Sort by
A Mixed-Method Study of ICT Labour Market in Ho Chi Minh City
Get PDF9 p.The purpose of this study is to provide insights into Information and Communication Technology (ICT) labour market in Ho Chi Minh City – the most important centre of VietnameseICT industry. The study was conducted using an innovative mix of semi-structured interview, online survey, desk research, and content analysis methods. Qualitative and quantitative data on enterprise profiles, business directions, employment situation, employment prospect, and job profiles in the industry were collected and analysed to provide a view of the ICT labour market and the ICT employers in Ho Chi Minh City. As it is probably the most comprehensive survey of the ICT labour market for Ho Chi Minh City, the data has been used for the development of a labour market information system
Biodiversity, Ecosystem Services and Human Impacts
No full text118 p.Marine ecosystems are very productive and include the open ocean, the deep-sea ocean, and coastal marine ecosystems, each of which has different physical and biological characteristics. The biodiversity of some of these ecosystems is very rich and abundant, offering unique opportunities for high-yield production of proteinaceous material, which is a source of high-quality foods. Biodiversity is fundamental to sustaining marine ecosystem services, such as food security, maintenance of water quality, and recovery from perturbations, which are currently being threatened worldwide. The main threats to marine biodiversity are habitat loss, eutrophication, overexploitation, pollution by hazardous substances, introduction of non-native species, and other human activities. Efforts to reduce these pressures are essential for coastal water quality, recovery of ecosystem services, global food security, and ecosystem stability. Bioindicators are important tools to be used as early warning signals to detect the presence of natural and chemical stressors when monitoring and managing ecosystems and thus promoting ecosystem health. The protection of biodiversity is a major target of the European Union Marine Strategy Framework Directive, requiring an assessment of the status of biodiversity on the level of species, habitats, and ecosystems, including genetic diversity and the role of biodiversity in food web structure and functioning. The restoration of marine ecosystems can support the productivity and reliability of goods and services that the ocean provides to humankind to maintain ecosystem integrity and stability. Some of the goods produced by the marine ecosystem services are fish harvests, wild plant and animal resources, water, and services that provide recreation, tourism, breeding and nursery habitats, water transport, carbon sequestration, erosion control, and habitat provision. This book comprises six chapters that discuss the ecological, economic, and social roles of a variety of organisms, from primary producers to consumers, relating these roles with water quality and conservation of estuarine and marine ecosystems and thus the contribution to human health
Artificial Intelligence and Librarianship - 3rd Edition
No full text533 p.Courses on Artificial Intelligence (AI) and Librarianship in ALA-accredited Masters of Library and Information (MLIS) degrees are rare. We have all been surprised by ChatGPT and similar Large Language Models. Generative AI is an important new area for librarianship. It is also developing so rapidly that no one can really keep up. Those trying to produce AI courses for the MLIS degree need all the help they can get. This book is a gesture of support. It consists of about 100,000 words on the topic, with a 4-500 item bibliography.
The third edition has changes and additions. These include:
- A new Chapter 6 on evaluation and the future
- New materials in Chapter 5 on current large language and multimodal models
- Scattered revisions, corrections, and updates
A light gradient boosting machine-based method for predicting the dynamic response of functionally graded plates
Get PDF10 p.The primary objective of this paper is to efficiently predict the dynamic response of functionally graded plates using LightGBM – a light gradient boosting machine, without reliance on supplementary analysis tools. To obtain the optimal LightGBM model, a dataset comprising 1,000 pairs of input and output is generated through iterations using a combination of isogeometric analysis (IGA) and third-order shear deformation plate theory (TSDT). In this model, the input is represented by a power index which governs the material distribution of the plate, and the output comprises 200 values illustrating deflection over time. To demonstrate the effectiveness of LightGBM in terms of accuracy and computational time, the results obtained by the proposed model are compared to those achieved with the optimal ANN, XGBoost models, and IGA
Preliminary optimization of extraction process for Citrus sinensis Osbeck L. peel essential oil and quality evaluation
Get PDF6 p.The present study performed optimization of the essential oil extraction from Citrus sinensis Osbeck L. peel. The conditions of grinding time of 1 min, extraction time of 150 min, and a water-to-material ratio of 1:3 (w/v) on frozen matter yielded 4.20 (%, g/100 g fresh matter) of extract in semi-pilot scaleby hydrodistillation method. C. sinensis peel EO was subjected to sensory evaluation, heavy metal contents, physical properties including density, pole rotation angles, and refractive index. D-limonene was identified in the synthesized peel extract with the highest content of 98.12 %. This process may have great potential as an alternative as it allows the recovery of C. sinensis by-products and production of high quality essential oils
The Adsorptive Treatment Of Methylene Blue From Aqueous Solution By Spent Coffee Grounds
Get PDF1 pageThe results obtained from using SCG as an adsorbent for the methylene blue (MB) adsorption were evaluated through the following investigations. The experiment investigating the stirring time found that the stirring time for adsorption to equilibrium was 150 min. Maximum adsorption capacity was 63.29 mg/g. The adsorption process followed the Langmuir isothermal adsorption. MB could be desorbed by adjusting the pH to 2
International Journal of STEM Education
No full textTạp chí đa ngành tập trung vào nghiên cứu giảng dạy và học tập trong lĩnh vực khoa học, công nghệ, kỹ thuật và toán học (STEM)
Assessment of nutrients (c, n, p) and heavy metal pollutions in surface canals sediments in ho chi minh city
Get PDF1 p.Canals are considered as primary recipients of dissolved and suspended matters that can be locally accumulated and/or transported far away from emission sources into surface sediments or sludges. Nutrients and heavy metals can pose risks to the environment if they exceed the natural processing capacity of ecosystems. The objectives of this study is assess the status of nutrients (C, N, P) and heavy metals pollution in the surface sediments in canals in Ho Chi Minh City. Sediment samples were taken at four canals, including Tau Hu, Vam Thuat, Nhieu Loc - Thi Nghe and 19/05 at the dry and wet season. The results showed that the contents of nutrients (C, N, P) in the canals were higher in the wet season than in the dry season. However, there is no guideline of the National Technical Regulation (QCVN) regarding the level of nutrient contents in the sediments. Therefore, we only presented the accumulation levels of nutrients in the canals. The results showed that the content Fe > Zn > Cu > Cr > Pb > Ni. The impact and risk assessments showed that the CF of elements was at low, medium and high, Igeo was in the range of no pollution to low and medium pollution. The PLI index > 1 and the RAC risk coefficient within < 30% indicate the pollution and impact of metals on environmental quality. It could be concluded that the studied rivers/canals in Ho Chi Minh City were accumulating large amounts of nutrients and heavy metals that can affect the life of aquatic animals and microorganisms. So, it is necessary to conduct a requirement to prevent and reduce the emission of organic substances and metals into the rivers/canals as well as canal rehabilitation that provide a better environmental condition for the life of aquatic organisms, animals, and humans living close to the canal
Risk Management in Construction: Recent Advances
Get PDF158 p.This book presents recent research on risk management in the construction industry. It consists of eight chapters, each of which contains valuable information on specified areas of risk management engineering. Topics addressed include identifying, analyzing, assessing, controlling, and monitoring risk for planning and construction stages; risk management methods used in the construction industry and case studies; risk management for buildings, dams, highways, railways, nuclear power plants, underground structures, energy facilities, and their appurtenant structures. This book provides a comprehensive overview of the latest information in risk management in the construction industry
Customer Centric Strategy - 2nd Edition
No full text224 p.Customer centricity is about organizational transformation making the customer the focus for business decisions, processes, product development, services, and procedures. Some companies purport to be customer centric but they fall short in connecting this concept throughout all functional areas of the business. While it is important to offer superb customer service, being customer centric is far more than that. It's about mapping the customer journey to discover customer needs and wants, what's working and what is not, then taking action to improve the customer experience. Customer loyalty is built through providing exceptional customer experiences. This in turn increases revenues through positive company image, referrals, and increased customer lifetime value. Most organizations today realize that they must focus on the customer to remain competitive